This is the 6545th most frequent Japanese word.
チャ
Tea.
Here, '茶' (cha) is used to refer to 'tea,' which is a common beverage in Japan.
お茶を飲むのが好きです。
I like drinking tea.
In this case, '茶' (cha) is part of the word 'お茶目' (ochame), which describes someone who is mischievous or playful.
お茶目な性格ですね。
You have a playful personality.
Here, '茶' (cha) is part of the word '茶色' (chairo), meaning 'brown,' used to describe the color.